Question

Which of the following is/are the algebraic equation(s)?

• A. $x+1=3$
• B. $x÷1=3$
• C. $x\times 1=3$
• D. $x-1=3$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A $x+1=3$
B $x÷1=3$
C $x\times 1=3$
D $x-1=3$

$\Rightarrow$An equation is a mathematical statement that states that the two expressions are equal and hold for some values of variable.

Hence, all the options have equal signs and both the equations are equal for some value of x.

$\text{Option A:}x+1=3$
$=x=3-1\Rightarrow x=2$

$\text{Option B:}x÷1=3$
$=x=3\times 1\Rightarrow x=3$

$\text{Option C:}x\times 1=3$
$=x=\frac{3}{1}\Rightarrow x=3$

$\text{Option D:}x-1=3$
$=x=3+1\Rightarrow x=4$